body{
    padding:0px 20px 0px 20px;
    .navbarUl{
        height: 60px;
        padding: 10px;
        font-size: 16px;
        color: #9A9A9A;
        border-bottom: 2px solid #9A9A9A;
        
        .active{
            font-size:20px;
            font-weight: bold;
            color: #4249ff;
            position: relative;
            &::after{
                display: block;
                content: '';
                width: 70%;
                height: 3px;
                background-color: #85cbf0;
                position: absolute;
                left: 6px;
                top: 40px;
            }
            
        }
    }
}
#container {width:300px; height: 180px; }  